Fans of Fleetwood Mac have been teased with a possible McVie reunion since last September, when word first broke that McVie was going to rejoin her bandmates for a couple concerts in London. She appeared with the band -- for just one song each night -- on Sept. 25 and 27 at the O2 Arena, to sing "Don't Stop."

(Incidentally, Fleetwood Mac's 2013 tour was the 17th biggest tour of 2013, according to Billboard Boxscore, grossing $62 million from 45 shows reported.)

Soon after guesting with the band at the O2, McVie told the Guardian that she would be "delighted" if the band were to "ask" her to play with them again. "But it hasn't happened, so we'll have to wait and see."

When Billboard caught up with Stevie Nicks late last year, while she was promoting her new film In Your Dreams and her appearance on American Horror Story: Coven, Nicks said, "If Chris wants to come back to the band, I said to her, 'It's your band. I don't really think you have to ask. Because it's your band. McVie. Fleetwood Mac-vie? So, it all depends, Chris, on you. How you feel. Do you want to take this on again?' "

Finally, over the last weekend, the band's Mick Fleetwood reportedly told a crowd at a Maui, Hawaii, show that McVie had indeed rejoined the group.

Undoubtedly, devotees of Fleetwood Mac are hoping for a new album from the famed Rumours-era lineup of the band, with singer-songwriters Nicks, McVie and Lindsey Buckingham. Together, the three were the main writers of five studio albums from the group: Fleetwood Mac (released in 1975), Rumours (1977), Tusk (1979), Mirage (1982) and Tango in the Night (1987).

Following McVie's departure, Fleetwood Mac has released one new studio set, 2003's Say You Will. The band also issued a four-song EP, Extended Play, in 2013.